LAN9252I/PT - 2/3-Port EtherCAT Controller | Microchip
MPN： LAN9252I/PT ✓ 啟用中LAN9252I/PT 概覽
An EtherCAT slave controller, or ESC, is a semiconductor that connects an embedded controller or industrial I/O module to an EtherCAT segment. The ESC processes EtherCAT frames, manages distributed clocks, provides dual-port memory for the host application, and controls network ports through integrated Ethernet PHYs. The LAN9252I/PT therefore combines an EtherCAT communication engine, two 100Mbps Ethernet physical layers, and host-side control in one device.
The LAN9252 family supports full-duplex 100BASE-TX on both integrated Ethernet ports and HP Auto-MDIX, allowing direct-connect or crossover Ethernet cables. The SPI/SQI interface connects the ESC to an MCU or embedded processor, while digital I/O mode lets EtherCAT-master-controlled signals be monitored or driven through the device. The external-transceiver path also supports 100BASE-FX when fiber connectivity is required.
The 64-TQFP-EP package provides a 10 mm by 10 mm land pattern with an exposed thermal pad. The /PT ordering suffix identifies the tray package option, while the I variant identifies the industrial temperature grade. Designers should confirm the exact electrical limits, pin names, timing values, recommended magnetics, and decoupling values against the manufacturer datasheet before releasing a PCB layout.
Typical applications include distributed I/O modules, servo and motion-control nodes, PLC interfaces, industrial Ethernet gateways, robot control systems, and EtherCAT fieldbus equipment. The integrated PHYs reduce external Ethernet PHY count, while the ESC resources allow a host processor to exchange process data and mailbox information with the EtherCAT master.
PCB implementation must preserve the package footprint and exposed-pad land pattern, provide adequate power and ground planes, route differential Ethernet pairs according to the datasheet guidance, and place magnetic-interface and decoupling components close to their associated pins. Verify isolation, magnetics, termination, and cable requirements for the target industrial installation.
This page consolidates the verified manufacturer and distributor information, package and interface details, sourcing context, and design guidance for engineers evaluating the LAN9252I/PT. It is intended to accelerate BOM review and board-level planning while leaving unverified electrical parameters explicitly marked for confirmation against the manufacturer datasheet.
直接替換替代品，適用於 LAN9252I/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： LAN9252I/PT （相同外形與佔位） — 差異在於 Package, Host Interface, Product Type, Supply Voltage, Supply Voltage Range.
LAN9252TI/PT
✅ 直接替換聯絡詢價
查看資料表 →LAN9215I-MT
✅ 直接替換聯絡詢價
查看資料表 →LAN9252I/ML
⚠️ 規格未經驗證聯絡詢價
查看資料表 →LAN9252TI/ML
⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LAN9252I/PT
聯絡詢價
查看資料表 →LAN9252I/PT 規格
| Device Type | 2/3-port EtherCAT slave controller (ESC) |
| Integrated Ethernet PHYs | 2 full-duplex 10/100 Ethernet PHYs |
| Ethernet Data Rate | 10 Mbps and 100 Mbps |
| Copper Ethernet Mode | 100BASE-TX |
| Fiber Ethernet Support | 100BASE-FX through an external fiber transceiver |
| Auto-MDIX | HP Auto-MDIX supported |
| Host Interface | Synchronous SPI/SQI |
| Dual-Port Memory | 4 KB |
| Fieldbus Memory Management Units | 3 FMMUs |
| Digital I/O Mode | Supported |
| Supply Voltage Options | 1.8 V, 2.5 V, and 3.3 V |
| 封裝 | 64-pin TQFP with exposed pad |
| Package Dimensions | 10 mm x 10 mm |
| 安裝類型 | Surface mount |
| Temperature Grade | Industrial |
| Ordering Package Option | /PT tray option |
| 腳位數 | 64 pins |
LAN9252I/PT /pt tray option 腳位配置指南
LAN9252I/PT（/pt tray option 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： LAN9252I/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
LAN9252I/PT 適用於 6 應用s: Distributed I/O Module, Servo and Motion Control Node, Industrial Ethernet Gateway, PLC EtherCAT Interface, Robotics Network Interface, Test and Measurement Data Interface.
Distributed I/O Module
The LAN9252I/PT fits a distributed I/O module because it combines an EtherCAT slave controller with two integrated 10/100 Ethernet PHYs. The host MCU can use the synchronous SPI/SQI interface to exchange process data through the 4 KB dual-port memory, while the EtherCAT master accesses the same network function over copper Ethernet. This integration can reduce the number of separate network-interface devices in a compact module. The 100BASE-TX capability and HP Auto-MDIX support suit industrial fieldbus cabling where direct-connect and crossover connections may occur. External magnetic-interface components and exact decoupling requirements must follow the manufacturer datasheet.
推薦
Servo and Motion Control Node
LAN9252I/PT is appropriate for a servo or motion-control node requiring deterministic EtherCAT connectivity alongside a local control processor. The two integrated 100Mbps PHYs support EtherCAT line and port networking, while the SPI/SQI host interface connects the ESC to motion-control logic. Its three FMMUs and dual-port memory provide controller resources for EtherCAT communication and data exchange. The device does not replace the motor-drive power stage or position-control algorithm; it provides the industrial network and host-interface foundation. Validate timing, clocking, reset behavior, thermal conditions, and cable-interface implementation against the complete datasheet.
推薦
Industrial Ethernet Gateway
The LAN9252I/PT can serve as the EtherCAT-facing controller in an industrial Ethernet gateway that bridges embedded control logic to fieldbus equipment. Two integrated Ethernet PHYs support 10/100 Mbps links and 100BASE-TX operation, while the host processor communicates through SPI/SQI. This arrangement allows a gateway to expose process data, diagnostics, and control registers to an EtherCAT master without requiring a separate Ethernet MAC and PHY pair for each port. The external transceiver option for 100BASE-FX broadens connectivity, but fiber magnetics, isolation, connectors, and timing must be designed as a complete subsystem rather than assumed from the ESC alone.
推薦
PLC EtherCAT Interface
LAN9252I/PT is well suited to an EtherCAT interface section in a PLC or compact controller because it consolidates the EtherCAT slave controller and two Ethernet PHYs. The SPI/SQI connection can attach to a control processor while EtherCAT frames pass through the two integrated network ports. HP Auto-MDIX improves installation flexibility by supporting direct-connect and crossover cable arrangements, while 100BASE-TX provides the required 100Mbps Ethernet class. The final design still needs verified electrical isolation or non-isolation strategy, protection requirements, magnetics selection, and a PCB layout that preserves the exposed-pad thermal and electrical design intent.
推薦
Robotics Network Interface
The LAN9252I/PT can provide the network backbone for a robot controller or distributed robot actuator node. EtherCAT communication allows the master to exchange synchronized process data with multiple intelligent nodes, while the integrated PHYs reduce the Ethernet hardware footprint around the host MCU. The 100BASE-TX rate is appropriate for industrial control networks, and HP Auto-MDIX simplifies connection setup. Robotics designs should separately address motor-drive isolation, power grounding, EMI from switching stages, cable shielding, and the timing relationship between EtherCAT synchronization and local actuator control.
推薦
Test and Measurement Data Interface
LAN9252I/PT can be used in an industrial test or measurement system that needs a reliable embedded EtherCAT endpoint for remote data acquisition and control. The SPI/SQI host interface allows a measurement processor to access EtherCAT process data, while the integrated 10/100 PHYs support network connectivity over 100BASE-TX. The controller is useful when a test chassis must combine distributed I/O, synchronization, and fieldbus control without adding separate network PHY components. For instrumentation, verify grounding, isolation, EMC behavior, cable reach, and analog or digital measurement-chain requirements separately because those specifications are not provided in the verified source data.
推薦
推薦產品摘要
工程參考資料，適用於 LAN9252I/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | LAN9252TI/PT | LAN9215I-MT | LAN9252I/ML | LAN9252TI/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
主要差異化特點
- Integrated dual Ethernet PHYs (對比LAN9252TI/PT)
- 100BASE-FX expansion path (對比LAN9215I-MT)
- Host-side EtherCAT resources (對比LAN9252TI/PT)
- Package and sourcing identity (對比LAN9252I/ML)
設計說明
Start the layout from the official Microchip package drawing rather than a generic 64-pin TQFP footprint. Preserve the exposed-pad land pattern, pin-1 orientation, pad dimensions, and recommended thermal-via arrangement. The verified distributor data identifies the LAN9252I/PT as a 64-pin TQFP-EP measuring 10 mm by 10 mm, but it does not provide the complete land pattern, so all package dimensions and pin assignments must be verified from the datasheet before fabrication.
Treat the two Ethernet ports as controlled-impedance, EMI-sensitive interfaces. Follow the manufacturer’s recommended differential trace geometry, reference-plane continuity, via strategy, isolation spacing, and magnetics placement. Keep the SPI/SQI host bus timing and clock routing away from Ethernet transitions where practical. Because the verified data does not include trace-length, impedance, or magnetics values, do not substitute generic Ethernet layout assumptions for the datasheet guidance.
Provide each verified supply rail with local decoupling and a low-impedance return path. The verified distributor listing identifies 1.8 V, 2.5 V, and 3.3 V supply options, but capacitor values, sequencing, current limits, and startup requirements are not provided. Confirm the exact rail-to-pin mapping, voltage tolerances, power consumption, and decoupling network in the datasheet before placing the bypass components and assigning power-budget limits.
Use the exposed pad as both an electrical connection and a thermal path, subject to the manufacturer’s recommended split-plane or solid-plane arrangement. Estimate junction temperature from actual dissipation, ambient temperature, board copper area, and the package thermal model rather than assuming that a TQFP footprint is adequate by itself. The verified data does not provide thermal resistance or maximum power dissipation, so a numerical thermal claim must not be added without the datasheet and a representative PCB stack-up.
Do not treat the /PT suffix as the complete ordering designation or assume that similarly named LAN9252 variants are drop-in replacements. Compare the exact MPN, package, temperature grade, pinout, electrical limits, interface modes, and lifecycle status. The supplied cross-reference results show comparison candidates but do not establish complete pin-to-pin equivalence, so substitute approval should follow a documented manufacturer-datasheet and PCB review.
合規資訊
The supplied verified data identifies an industrial LAN9252I/PT product but does not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Compliance must be confirmed from the current Microchip product documentation and the manufacturer’s material declaration.
